Finding the Fourth Proportional to 2,030.57, 3,046.07 and 991.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.57 : 3,046.07 = 991.14 : x
2. Step 2: Convert to fraction form
   2,030.57/3,046.07 = 991.14/x
3. Step 3: Cross multiply
   2,030.57x = 3,046.07 × 991.14
4. Step 4: Simplify right side
   2,030.57x = 3,019,081.82
5. Step 5: Solve for x
   x = 3,019,081.82/2,030.57
6. Step 6: Final answer
   x = 1,486.81